/* 変数定義 */
:root {
    /* 新カラーパレット */
    --primary-dark: #2A1B5D; /* ディープパープル - 高級感と先進性 */
    --primary-light: #4A3A8D; /* ライトパープル - 主要色の明るいバリエーション */
    --accent-pink: #FF0080; /* ビビッドピンク - 注目を集める */
    --accent-blue: #00FFEA; /* サイバーブルー - テクノロジー感 */
    --dark-base: #080510; /* ほぼブラック - コントラスト強調 */
    --dark-surface: #141022; /* ダークサーフェス - コンテンツ背景 */
    --light-text: #FFFFFF; /* 白テキスト */
    --light-text-muted: rgba(255, 255, 255, 0.7); /* 弱い白テキスト */
    /* グラデーション */
    --gradient-primary: linear-gradient(135deg, #2A1B5D 0%, #4A3A8D 100%);
    --gradient-accent: linear-gradient(135deg, #FF0080 0%, #00FFEA 100%);
    --gradient-dark: linear-gradient(135deg, #080510 0%, #141022 100%);
    /* トランジション */
    --transition-fast: 0.3s ease;
    --transition-medium: 0.5s cubic-bezier(0.165, 0.84, 0.44, 1);
    --transition-slow: 0.7s cubic-bezier(0.19, 1, 0.22, 1);
    /* シャドウ */
    --shadow-sm: 0 4px 6px rgba(0, 0, 0, 0.1);
    --shadow-md: 0 10px 15px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 20px 25px rgba(0, 0, 0, 0.15);
    --shadow-accent: 0 5px 15px rgba(255, 0, 128, 0.4);
    --shadow-blue: 0 5px 15px rgba(0, 255, 234, 0.4);
    /* グラスモーフィズム */
    --glass-bg: rgba(255, 255, 255, 0.05);
    --glass-border: rgba(255, 255, 255, 0.1);
    --glass-blur: blur(10px);
    /* レイアウト */
    --header-height: 80px;
    --container-max-width: 1200px;
    --container-padding: 2rem;
    --section-spacing: 100px;
    --border-radius: 8px;
    --border-radius-lg: 16px;
}

/* リセットとベーススタイル */
*, *::before, *::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    font-size: 62.5%; /* 10px = 1rem */
    scroll-behavior: smooth;
}

body {
    font-family: 'Noto Sans JP', sans-serif;
    font-size: 1.6rem;
    line-height: 1.6;
    color: var(--light-text);
    background-color: var(--dark-base);
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    opacity: 0;
    transition: opacity 0.6s ease-out;
    min-height: 100vh;
}

    body.loaded {
        opacity: 1;
    }

/* コンテナ */
.container {
    width: 100%;
    max-width: var(--container-max-width);
    margin-left: auto;
    margin-right: auto;
    padding-left: var(--container-padding);
    padding-right: var(--container-padding);
    position: relative;
}

/* タイポグラフィ */
h1, h2, h3, h4, h5, h6 {
    font-family: 'Jost', 'Noto Sans JP', sans-serif;
    font-weight: 300;
    line-height: 1.2;
    margin-bottom: 2rem;
    color: var(--light-text);
}

h1 {
    font-size: 5.2rem;
    font-weight: 200;
    letter-spacing: -0.02em;
}

h2 {
    font-size: 4.2rem;
    letter-spacing: -0.01em;
}

    h2 span {
        color: var(--accent-blue);
        font-weight: 400;
        display: inline-block;
    }

h3 {
    font-size: 2.8rem;
    letter-spacing: 0.01em;
}

h4 {
    font-size: 2rem;
    letter-spacing: 0.01em;
}

p {
    margin-bottom: 1.6rem;
    color: var(--light-text-muted);
}

a {
    color: var(--accent-blue);
    text-decoration: none;
    transition: var(--transition-fast);
    position: relative;
}

    a:hover {
        color: var(--accent-pink);
    }

/* セクション共通スタイル */
section {
    padding: 100px 0;
    position: relative;
    overflow: hidden;
}

.section-header {
    text-align: center;
    margin-bottom: 6rem;
    position: relative;
}

    .section-header.reverse h2 span {
        color: var(--accent-pink);
    }

.section-tagline {
    font-size: 2rem;
    color: var(--light-text-muted);
    max-width: 800px;
    margin: 0 auto;
}

.section-divider {
    width: 60px;
    height: 2px;
    background: var(--gradient-accent);
    margin: 2rem auto;
    position: relative;
    border-radius: 2px;
}

/* ボタン */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 1.2rem 2.4rem;
    border-radius: var(--border-radius);
    font-weight: 500;
    letter-spacing: 0.5px;
    transition: all var(--transition-medium);
    border: none;
    cursor: pointer;
    text-decoration: none;
    text-align: center;
    font-size: 1.6rem;
    line-height: 1;
    position: relative;
    overflow: hidden;
}

    .btn::before {
        content: '';
        position: absolute;
        top: 0;
        left: -100%;
        width: 100%;
        height: 100%;
        background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
        transition: var(--transition-medium);
    }

    .btn:hover::before {
        left: 100%;
    }

.btn-primary {
    background: var(--accent-blue);
    color: var(--dark-base);
    box-shadow: var(--shadow-blue);
}

    .btn-primary:hover {
        background: var(--accent-pink);
        color: var(--light-text);
        transform: translateY(-3px);
        box-shadow: var(--shadow-accent);
    }

.btn-outline {
    background: transparent;
    color: var(--light-text);
    box-shadow: inset 0 0 0 2px var(--accent-blue);
}

    .btn-outline:hover {
        background: rgba(0, 255, 234, 0.1);
        box-shadow: inset 0 0 0 2px var(--accent-pink), var(--shadow-accent);
        transform: translateY(-3px);
    }

.btn-text {
    background: transparent;
    color: var(--accent-blue);
    padding: 0.8rem 0;
    position: relative;
    display: inline-flex;
    align-items: center;
    font-weight: 400;
}

    .btn-text::after {
        content: '';
        position: absolute;
        bottom: 0;
        left: 0;
        width: 0;
        height: 2px;
        background: var(--accent-blue);
        transition: width var(--transition-medium);
    }

    .btn-text:hover {
        color: var(--accent-pink);
    }

        .btn-text:hover::after {
            width: 100%;
            background: var(--accent-pink);
        }

    .btn-text i {
        margin-left: 0.8rem;
        transition: transform var(--transition-fast);
    }

    .btn-text:hover i {
        transform: translateX(4px);
    }

.btn-lg {
    padding: 1.6rem 3.2rem;
    font-size: 1.8rem;
}

.btn-block {
    display: block;
    width: 100%;
}

.btn-rounded {
    border-radius: 100px;
}

/* ヘッダーとナビゲーション */
.main-header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    padding: 2rem 0;
    transition: all var(--transition-medium);
    background-color: transparent;
}

    .main-header.scrolled {
        padding: 1rem 0;
        background-color: rgba(8, 5, 16, 0.8);
        backdrop-filter: var(--glass-blur);
        border-bottom: 1px solid var(--glass-border);
        box-shadow: var(--shadow-sm);
    }

    .main-header .container {
        display: flex;
        align-items: center;
        justify-content: space-between;
    }

.logo {
    font-family: 'Jost', sans-serif;
    font-size: 2.8rem;
    font-weight: 200;
    z-index: 10;
}

    .logo a {
        color: var(--light-text);
        text-decoration: none;
        display: inline-block;
        background: var(--gradient-accent);
        -webkit-background-clip: text;
        background-clip: text;
        -webkit-text-fill-color: transparent;
        position: relative;
    }

.main-nav {
    margin-left: auto;
    margin-right: 2rem;
}

    .main-nav ul {
        display: flex;
        list-style: none;
        gap: 3rem;
    }

        .main-nav ul li a {
            color: var(--light-text);
            text-decoration: none;
            font-size: 1.6rem;
            font-weight: 400;
            position: relative;
            padding: 0.5rem 0;
            transition: color var(--transition-fast);
        }

            .main-nav ul li a::after {
                content: '';
                position: absolute;
                bottom: 0;
                left: 0;
                width: 0;
                height: 2px;
                background: var(--accent-blue);
                transition: width var(--transition-medium);
            }

            .main-nav ul li a:hover,
            .main-nav ul li a.active {
                color: var(--accent-blue);
            }

                .main-nav ul li a:hover::after,
                .main-nav ul li a.active::after {
                    width: 100%;
                }

            .main-nav ul li a.highlight {
                color: var(--accent-pink);
            }

                .main-nav ul li a.highlight::after {
                    background: var(--accent-pink);
                }

.nav-toggle {
    display: none;
    flex-direction: column;
    justify-content: space-between;
    width: 28px;
    height: 20px;
    cursor: pointer;
    z-index: 10;
}

    .nav-toggle span {
        display: block;
        width: 100%;
        height: 2px;
        background-color: var(--light-text);
        transition: all var(--transition-fast);
    }

/* ヒーローセクション */
.hero-section {
    position: relative;
    height: 100vh;
    min-height: 700px;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    padding: 0;
}

.hero-canvas-container {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 0;
}

.hero-content {
    position: relative;
    z-index: 1;
    text-align: center;
    padding: 0 2rem;
    max-width: 900px;
}

.hero-title {
    font-size: 7rem;
    margin-bottom: 2rem;
    line-height: 1.1;
    display: flex;
    flex-direction: column;
    align-items: center;
}

.text-animate {
    display: block;
    opacity: 0;
    transform: translateY(30px);
    background: var(--gradient-accent);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
    animation: fadeInUp 0.8s forwards;
}

    .text-animate:nth-child(2) {
        animation-delay: 0.3s;
    }

.hero-subtitle {
    font-size: 2.4rem;
    margin-bottom: 4rem;
    opacity: 0;
    transform: translateY(30px);
    animation: fadeInUp 0.8s forwards 0.6s;
}

.hero-buttons {
    display: flex;
    gap: 2rem;
    justify-content: center;
    opacity: 0;
    transform: translateY(30px);
    animation: fadeInUp 0.8s forwards 0.9s;
}

.scroll-indicator {
    position: absolute;
    bottom: 4rem;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    opacity: 0;
    animation: fadeIn 1s forwards 1.5s;
    z-index: 1;
    cursor: pointer;
}

    .scroll-indicator span {
        font-size: 1.4rem;
        margin-bottom: 1rem;
        color: var(--light-text-muted);
    }

.pulse {
    animation: pulse 2s infinite;
    font-size: 2rem;
    color: var(--accent-blue);
}
/* ビジョンコンセプトセクション */
.vision-concept {
    padding: 12rem 0;
    background: var(--dark-base);
    position: relative;
    overflow: hidden;
}

.vision-concept::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, rgba(255, 0, 128, 0.05) 0%, rgba(0, 255, 234, 0.05) 100%);
    z-index: 0;
}

.concept-header {
    text-align: center;
    margin-bottom: 5rem;
    position: relative;
    z-index: 1;
}

.concept-title {
    font-size: 4.2rem;
    margin-bottom: 2rem;
    font-weight: 300;
    letter-spacing: -0.01em;
    color: var(--light-text);
}

.concept-tagline {
    font-size: 2rem;
    color: var(--light-text-muted);
    line-height: 1.5;
    max-width: 700px;
    margin: 0 auto;
}

.concept-content {
    display: flex;
    justify-content: center;
    margin-bottom: 6rem;
    position: relative;
    z-index: 1;
}

.concept-text {
    max-width: 800px;
    text-align: center;
}

.concept-text p {
    font-size: 1.8rem;
    line-height: 1.8;
    margin-bottom: 2rem;
    color: var(--light-text-muted);
}

.concept-text p strong {
    font-size: 2.4rem;
    color: var(--accent-blue);
    font-weight: 300;
    display: block;
    margin: 3rem 0;
}

.highlight-block {
    padding: 3rem;
    background: rgba(255, 255, 255, 0.03);
    backdrop-filter: blur(5px);
    border-left: 3px solid var(--accent-pink);
    font-size: 2.2rem !important;
    line-height: 1.6 !important;
    margin: 4rem 0 !important;
    border-radius: 0 8px 8px 0;
}

.text-accent {
    color: var(--accent-blue);
    font-weight: 500;
}

.concept-features {
    display: flex;
    flex-direction: column;
    flex-wrap: wrap;
    justify-content: center;
    gap: 3rem;
    margin-bottom: 5rem;
    position: relative;
    z-index: 1;
}

/* PC表示では横並び */
@media (min-width: 768px) {
    .concept-features {
        flex-direction: row;
    }
    
    .concept-feature {
        flex: 1;
        min-width: 250px;
        max-width: 350px;
    }
}

.concept-feature {
    padding: 3rem;
    background: var(--glass-bg);
    backdrop-filter: var(--glass-blur);
    border: 1px solid var(--glass-border);
    border-radius: var(--border-radius);
    text-align: center;
    transition: transform var(--transition-medium), box-shadow var(--transition-medium);
    box-shadow: var(--shadow-md);
}

.concept-feature:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-lg);
    border-color: var(--accent-blue);
}

.feature-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto 2rem;
    background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary-light) 100%);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 3rem;
    color: var(--accent-blue);
}

.concept-feature h3 {
    font-size: 2.2rem;
    margin-bottom: 1.5rem;
    color: var(--light-text);
    font-weight: 400;
}

.concept-feature p {
    font-size: 1.6rem;
    color: var(--light-text-muted);
    line-height: 1.6;
}

.concept-cta {
    text-align: center;
    margin-top: 5rem;
    position: relative;
    z-index: 1;
}

.text-highlight {
    color: var(--accent-blue);
    font-weight: 500;
    position: relative;
}

.text-highlight::after {
    content: '';
    position: absolute;
    bottom: -3px;
    left: 0;
    width: 100%;
    height: 2px;
    background: linear-gradient(90deg, var(--accent-pink), var(--accent-blue));
}

@media (max-width: 992px) {
    .concept-title {
        font-size: 3.6rem;
    }
    
    .concept-tagline {
        font-size: 1.8rem;
    }
    
    .concept-text p {
        font-size: 1.6rem;
    }
    
    .concept-text p strong {
        font-size: 2rem;
    }
    
    .highlight-block {
        font-size: 1.8rem !important;
        padding: 2.5rem;
    }
}

@media (max-width: 768px) {
    .vision-concept {
        padding: 8rem 0;
    }
    
    .concept-title {
        font-size: 3.2rem;
    }
    
    .highlight-block {
        font-size: 1.6rem !important;
        padding: 2rem;
    }
    
    .feature-icon {
        width: 70px;
        height: 70px;
        font-size: 2.4rem;
    }
    
    .concept-feature h3 {
        font-size: 2rem;
    }
}

/* メッセージボードセクション */
.message-board-section {
    position: relative;
    background: var(--gradient-dark);
    overflow: hidden;
}

    .message-board-section::before {
        content: '';
        position: absolute;
        top: 0;
        left: 0;
        width: 100%;
        height: 100%;
        background: url('../img/pattern-grid.svg');
        opacity: 0.05;
        pointer-events: none;
    }

.interactive-demo {
    display: flex;
    align-items: center;
    justify-content: space-around;
    flex-wrap: wrap;
    margin: 5rem 0;
    perspective: 1000px;
}

.demo-phone {
    position: relative;
    width: 300px;
    height: 600px;
    background: var(--dark-surface);
    border-radius: 30px;
    padding: 20px;
    box-shadow: var(--shadow-lg);
    border: 1px solid var(--glass-border);
    transform: rotateY(-10deg);
    transition: transform var(--transition-medium);
}

    .demo-phone:hover {
        transform: rotateY(-5deg) translateY(-10px);
    }

.phone-screen {
    background: #fff;
    border-radius: 20px;
    width: 100%;
    height: 100%;
    overflow: hidden;
    position: relative;
}

.line-chat {
    background: #EDEDED;
    display: flex;
    flex-direction: column;
    padding: 10px;
    height: 100%;
    overflow-y: auto;
}

.demo-connection {
    position: relative;
    width: 15%;
    height: 10px;
    background: linear-gradient(to right, var(--accent-blue), var(--accent-pink));
    margin: 0 10px;
}

    .demo-connection::before,
    .demo-connection::after {
        content: '';
        position: absolute;
        width: 20px;
        height: 20px;
        border-radius: 50%;
        top: 50%;
        transform: translateY(-50%);
        animation: pulseConnection 2s infinite alternate;
    }

    .demo-connection::before {
        left: -10px;
        background: var(--accent-blue);
        box-shadow: 0 0 15px var(--accent-blue);
    }

    .demo-connection::after {
        right: -10px;
        background: var(--accent-pink);
        box-shadow: 0 0 15px var(--accent-pink);
    }

.demo-display {
    position: relative;
    width: 500px;
    height: 300px;
    background: var(--dark-surface);
    border-radius: 10px;
    padding: 10px;
    box-shadow: var(--shadow-lg);
    border: 1px solid var(--glass-border);
    transform: rotateY(10deg);
    transition: transform var(--transition-medium);
}

    .demo-display:hover {
        transform: rotateY(5deg) translateY(-10px);
    }

.led-screen {
    background: #000;
    border-radius: 5px;
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    position: relative;
}

.message-board-features {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 3rem;
    margin: 5rem 0;
}

.feature {
    background: var(--glass-bg);
    backdrop-filter: var(--glass-blur);
    border: 1px solid var(--glass-border);
    border-radius: var(--border-radius);
    padding: 3rem;
    width: 300px;
    text-align: center;
    transition: transform var(--transition-medium), box-shadow var(--transition-medium);
}

    .feature:hover {
        transform: translateY(-10px);
        box-shadow: var(--shadow-md);
    }

.feature-icon {
    font-size: 3.6rem;
    margin-bottom: 2rem;
    color: var(--accent-blue);
}

.feature h3 {
    font-size: 2.2rem;
    margin-bottom: 1.5rem;
    font-weight: 400;
}

.feature p {
    font-size: 1.6rem;
    color: var(--light-text-muted);
}

.text-center {
    text-align: center;
    margin-top: 4rem;
}
.full-width-image-container {
    width: 100%;
    margin: 3rem auto;
    padding: 0 1rem;
    max-width: 1400px; /* 画像の最大幅を設定 */
}

.full-width-image {
    width: 100%;
    height: auto;
    border-radius: 8px;
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.2);
    transition: transform 0.3s ease;
}

.full-width-image:hover {
    transform: scale(1.01);
}

/* スマホでの表示調整 */
@media (max-width: 768px) {
    .full-width-image-container {
        margin: 2rem auto;
    }
}

/* 動画制作セクション */
.video-creation-section {
    background: var(--dark-base);
    position: relative;
}

.video-gallery {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 3rem;
    margin: 5rem 0;
    perspective: 1000px;
}

.video-item {
    position: relative;
    border-radius: var(--border-radius);
    overflow: hidden;
    box-shadow: var(--shadow-md);
    transform-style: preserve-3d;
    transform: rotateX(10deg);
    transition: transform var(--transition-medium);
    cursor: pointer;
}

    .video-item:hover {
        transform: rotateX(0deg) translateZ(20px);
    }

.video-thumbnail {
    position: relative;
    width: 100%;
    height: 0;
    padding-bottom: 56.25%; /* 16:9 aspect ratio */
    overflow: hidden;
}

    .video-thumbnail img {
        position: absolute;
        top: 0;
        left: 0;
        width: 100%;
        height: 100%;
        object-fit: cover;
        transition: transform var(--transition-medium);
    }

.video-item:hover .video-thumbnail img {
    transform: scale(1.05);
}

.play-button {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 60px;
    height: 60px;
    background: rgba(0, 255, 234, 0.2);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--light-text);
    font-size: 2rem;
    transition: all var(--transition-medium);
    backdrop-filter: blur(5px);
    opacity: 0;
}

.video-item:hover .play-button {
    opacity: 1;
    background: var(--accent-blue);
    box-shadow: 0 0 20px var(--accent-blue);
}

.video-item h3 {
    padding: 1.5rem;
    background: var(--dark-surface);
    margin-bottom: 0;
    font-size: 1.8rem;
    font-weight: 400;
    text-align: center;
}

.video-modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(8, 5, 16, 0.9);
    display: none;
    align-items: center;
    justify-content: center;
    z-index: 9999;
    cursor: pointer;
}

.modal-content {
    width: 80%;
    max-width: 900px;
    max-height: 80vh;
    position: relative;
    cursor: default;
}

.close-modal {
    position: absolute;
    top: -40px;
    right: 0;
    color: var(--light-text);
    font-size: 3rem;
    cursor: pointer;
    z-index: 1;
}

.modal-content video {
    width: 100%;
    height: auto;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-lg);
}

/* サービスセクション */
.services-section {
    background: var(--gradient-dark);
    position: relative;
}

.services-container {
    display: flex;
    flex-direction: column;
    gap: 10rem;
}

.service-card {
    position: relative;
    display: flex;
    align-items: center;
    gap: 5rem;
    padding: 3rem;
    background: var(--glass-bg);
    backdrop-filter: var(--glass-blur);
    border: 1px solid var(--glass-border);
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-lg);
    transition: transform var(--transition-medium), box-shadow var(--transition-medium);
    overflow: hidden;
}

    .service-card:hover {
        transform: translateY(-10px);
        box-shadow: var(--shadow-lg), 0 0 30px rgba(0, 255, 234, 0.2);
    }

.service-number {
    position: absolute;
    top: 2rem;
    left: 2rem;
    font-family: 'Jost', sans-serif;
    font-size: 8rem;
    font-weight: 200;
    color: rgba(255, 255, 255, 0.03);
    z-index: 0;
}

.service-content {
    flex: 1;
    position: relative;
    z-index: 1;
}

    .service-content h3 {
        font-size: 3.2rem;
        margin-bottom: 2rem;
        font-weight: 300;
    }

.service-features {
    list-style: none;
    margin: 2rem 0;
}

    .service-features li {
        margin-bottom: 1rem;
        display: flex;
        align-items: center;
        color: var(--light-text-muted);
    }

        .service-features li i {
            color: var(--accent-blue);
            margin-right: 1rem;
        }

.service-image {
    flex: 1;
    position: relative;
    max-width: 500px;
    height: 300px;
    border-radius: var(--border-radius);
    overflow: hidden;
    box-shadow: var(--shadow-md);
}

    .service-image img {
        width: 100%;
        height: 100%;
        object-fit: cover;
        transition: transform var(--transition-medium);
    }

.service-card:hover .service-image img {
    transform: scale(1.05);
}

/* 導入事例マップ */
.case-studies-section {
    background: var(--dark-base);
    position: relative;
}

.map-container {
    position: relative;
    height: 500px;
    margin: 5rem 0;
    display: flex;
    flex-direction: column;
    align-items: center;
}

.case-map {
    width: 100%;
    height: 100%;
    background: url('../img/japan-map.svg') no-repeat center;
    background-size: contain;
    position: relative;
}

.case-details {
    display: flex;
    gap: 5rem;
    margin-top: 3rem;
}

.case-counter {
    text-align: center;
}

.counter {
    font-size: 5rem;
    font-family: 'Jost', sans-serif;
    font-weight: 200;
    color: var(--accent-blue);
    margin-bottom: 1rem;
}

.case-cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 3rem;
    margin-top: 5rem;
}

/* お問い合わせセクション */
.contact-section {
    background: linear-gradient(135deg, var(--primary-dark) 0%, var(--dark-base) 100%);
    position: relative;
}

.contact-wrapper {
    display: flex;
    justify-content: center;
    align-items: flex-start;
    gap: 5rem;
    flex-wrap: wrap;
}

.contact-content {
    width: 100%;
    max-width: 1000px;
    text-align: center;
}

    .contact-content h2 {
        font-size: 4.2rem;
        margin-bottom: 2rem;
        line-height: 1.3;
    }

.contact-methods {
    display: flex;
    justify-content: center;
    gap: 2rem;
    margin: 4rem 0;
    flex-wrap: wrap;
}

.contact-method {
    display: flex;
    align-items: center;
    padding: 1.5rem 2.5rem;
    background: var(--glass-bg);
    backdrop-filter: var(--glass-blur);
    border: 1px solid var(--glass-border);
    border-radius: var(--border-radius);
    color: var(--light-text);
    text-decoration: none;
    transition: all var(--transition-medium);
}

    .contact-method.phone {
        color: var(--accent-blue);
    }

    .contact-method.line {
        color: #06C755;
    }

    .contact-method:hover {
        transform: translateY(-5px);
        box-shadow: var(--shadow-md);
    }

    .contact-method i {
        font-size: 2.8rem;
        margin-right: 1.5rem;
    }

    .contact-method div {
        text-align: left;
    }

    .contact-method span {
        display: block;
        font-size: 1.4rem;
        color: var(--light-text-muted);
        margin-bottom: 0.5rem;
    }

    .contact-method strong {
        font-size: 1.8rem;
        font-weight: 500;
    }

.contact-form-container {
    margin: 5rem auto;
    max-width: 600px;
}

.contact-form {
    background: var(--glass-bg);
    backdrop-filter: var(--glass-blur);
    border: 1px solid var(--glass-border);
    border-radius: var(--border-radius-lg);
    padding: 3rem;
    box-shadow: var(--shadow-lg);
}

.form-header {
    text-align: center;
    margin-bottom: 3rem;
}

    .form-header h3 {
        font-size: 2.4rem;
        margin-bottom: 0;
    }

.form-group {
    margin-bottom: 2rem;
}

    .form-group label {
        display: block;
        margin-bottom: 0.8rem;
        font-size: 1.6rem;
    }

.required {
    color: var(--accent-pink);
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 1.2rem;
    background: rgba(0, 0, 0, 0.2);
    border: 1px solid var(--glass-border);
    border-radius: var(--border-radius);
    color: var(--light-text);
    font-size: 1.6rem;
    font-family: 'Noto Sans JP', sans-serif;
    transition: border-color var(--transition-fast);
}

    .form-group input:focus,
    .form-group select:focus,
    .form-group textarea:focus {
        border-color: var(--accent-blue);
        outline: none;
    }

.consent-group {
    display: flex;
    align-items: center;
}

.checkbox-container {
    position: relative;
    display: flex;
    align-items: center;
    cursor: pointer;
    user-select: none;
}

    .checkbox-container input {
        position: absolute;
        opacity: 0;
        cursor: pointer;
        height: 0;
        width: 0;
    }

.checkmark {
    position: relative;
    height: 20px;
    width: 20px;
    background-color: rgba(0, 0, 0, 0.2);
    border: 1px solid var(--glass-border);
    border-radius: 4px;
    margin-right: 1rem;
}

.checkbox-container input:checked ~ .checkmark {
    background-color: var(--accent-blue);
    border-color: var(--accent-blue);
}

.checkmark:after {
    content: '';
    position: absolute;
    display: none;
    left: 7px;
    top: 3px;
    width: 5px;
    height: 10px;
    border: solid white;
    border-width: 0 2px 2px 0;
    transform: rotate(45deg);
}

.checkbox-container input:checked ~ .checkmark:after {
    display: block;
}

.consent-text {
    font-size: 1.4rem;
    color: var(--light-text-muted);
}

.floating-cta {
    position: fixed;
    bottom: 3rem;
    right: 3rem;
    z-index: 999;
    transform: scale(0);
    transition: transform var(--transition-medium);
}

    .floating-cta.visible {
        transform: scale(1);
    }

    .floating-cta .btn {
        font-size: 1.8rem;
        box-shadow: var(--shadow-lg);
    }

        .floating-cta .btn i {
            margin-right: 1rem;
        }

/* フッター */
.main-footer {
    background: var(--dark-base);
    padding: 8rem 0 2rem;
    position: relative;
}

.footer-content {
    display: flex;
    flex-wrap: wrap;
    gap: 4rem;
    margin-bottom: 5rem;
}

.footer-info {
    flex: 2;
    min-width: 300px;
}

    .footer-info h3 {
        font-size: 2.8rem;
        margin-bottom: 2rem;
        font-weight: 300;
    }

.contact-info {
    margin: 2rem 0;
}

.contact-item {
    display: flex;
    align-items: flex-start;
    margin-bottom: 1.5rem;
}

    .contact-item i {
        color: var(--accent-blue);
        margin-right: 1.5rem;
        margin-top: 0.3rem;
    }

.social-links {
    display: flex;
    gap: 1.5rem;
    margin-top: 2rem;
}

    .social-links a {
        display: flex;
        align-items: center;
        justify-content: center;
        width: 40px;
        height: 40px;
        background: var(--glass-bg);
        border-radius: 50%;
        color: var(--light-text);
        font-size: 1.8rem;
        transition: all var(--transition-medium);
    }

        .social-links a:hover {
            transform: translateY(-5px);
        }

        .social-links a.twitter:hover {
            background: #1DA1F2;
            color: white;
        }

        .social-links a.facebook:hover {
            background: #4267B2;
            color: white;
        }

        .social-links a.instagram:hover {
            background: linear-gradient(45deg, #405DE6, #5851DB, #833AB4, #C13584, #E1306C, #FD1D1D);
            color: white;
        }

        .social-links a.youtube:hover {
            background: #FF0000;
            color: white;
        }

        .social-links a.line:hover {
            background: #06C755;
            color: white;
        }

.footer-links {
    flex: 1;
    min-width: 200px;
}

    .footer-links h4 {
        font-size: 1.8rem;
        margin-bottom: 2rem;
        font-weight: 400;
    }

    .footer-links ul {
        list-style: none;
    }

        .footer-links ul li {
            margin-bottom: 1rem;
        }

            .footer-links ul li a {
                color: var(--light-text-muted);
                transition: color var(--transition-fast);
            }

                .footer-links ul li a:hover {
                    color: var(--accent-blue);
                }

.footer-newsletter {
    flex: 1;
    min-width: 300px;
}

.newsletter-form {
    display: flex;
    margin-top: 2rem;
}

    .newsletter-form input {
        flex: 1;
        padding: 1.2rem;
        background: rgba(0, 0, 0, 0.2);
        border: 1px solid var(--glass-border);
        border-radius: var(--border-radius) 0 0 var(--border-radius);
        color: var(--light-text);
        font-size: 1.6rem;
    }

    .newsletter-form button {
        padding: 1.2rem 2rem;
        background: var(--accent-blue);
        color: var(--dark-base);
        border: none;
        border-radius: 0 var(--border-radius) var(--border-radius) 0;
        cursor: pointer;
        font-size: 1.6rem;
        transition: background var(--transition-fast);
    }

        .newsletter-form button:hover {
            background: var(--accent-pink);
            color: var(--light-text);
        }

.copyright {
    text-align: center;
    padding-top: 2rem;
    border-top: 1px solid var(--glass-border);
    color: var(--light-text-muted);
    font-size: 1.4rem;
}

/* アニメーション用キーフレーム */
@keyframes fadeIn {
    from {
        opacity: 0;
    }

    to {
        opacity: 1;
    }
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes pulse {
    0% {
        transform: translateY(0);
    }

    50% {
        transform: translateY(10px);
    }

    100% {
        transform: translateY(0);
    }
}

@keyframes pulseConnection {
    0% {
        box-shadow: 0 0 5px currentColor;
    }

    100% {
        box-shadow: 0 0 20px currentColor;
    }
}

/* レスポンシブデザイン */
@media (max-width: 1200px) {
    html {
        font-size: 58%;
    }

    .hero-title {
        font-size: 6rem;
    }

    .service-card {
        flex-direction: column;
    }

    .service-image {
        max-width: 100%;
    }
}

@media (max-width: 992px) {
    html {
        font-size: 56%;
    }

    .main-nav {
        display: none;
        position: fixed;
        top: 0;
        right: 0;
        width: 70%;
        height: 100vh;
        background: rgba(8, 5, 16, 0.95);
        backdrop-filter: var(--glass-blur);
        padding: 10rem 5rem;
        z-index: 5;
        transition: transform var(--transition-medium);
        transform: translateX(100%);
    }

        .main-nav.active {
            display: block;
            transform: translateX(0);
        }

        .main-nav ul {
            flex-direction: column;
            gap: 2rem;
        }

    .nav-toggle {
        display: flex;
    }

    .hero-title {
        font-size: 5.5rem;
    }

    .interactive-demo {
        flex-direction: column;
        gap: 3rem;
    }

    .demo-connection {
        width: 10px;
        height: 100px;
    }

        .demo-connection::before,
        .demo-connection::after {
            left: 50%;
            transform: translate(-50%, 0);
        }

        .demo-connection::before {
            top: -10px;
        }

        .demo-connection::after {
            top: auto;
            bottom: -10px;
        }

    .contact-methods {
        flex-direction: column;
        align-items: center;
    }

    .contact-method {
        width: 100%;
        max-width: 300px;
    }
}

@media (max-width: 768px) {
    html {
        font-size: 54%;
    }

    :root {
        --container-padding: 1.5rem;
        --section-spacing: 70px;
    }

    section {
        padding: 70px 0;
    }

    .hero-title {
        font-size: 4.8rem;
    }

    .hero-subtitle {
        font-size: 2rem;
    }

    .hero-buttons {
        flex-direction: column;
        gap: 1.5rem;
        width: 100%;
        max-width: 300px;
        margin: 0 auto;
    }

    .demo-phone {
        width: 250px;
        height: 500px;
    }

    .demo-display {
        width: 300px;
        height: 200px;
    }

    .feature {
        width: 100%;
        max-width: 300px;
    }

    .modal-content {
        width: 95%;
    }

    .service-card {
        padding: 2rem;
    }

    .contact-form {
        padding: 2rem;
    }
}

@media (max-width: 576px) {
    html {
        font-size: 52%;
    }

    .logo {
        font-size: 2.4rem;
    }

    .hero-title {
        font-size: 4rem;
    }

    .section-header h2 {
        font-size: 3.6rem;
    }

    .service-number {
        font-size: 6rem;
    }

    .service-image {
        height: 200px;
    }

    .floating-cta {
        bottom: 2rem;
        right: 2rem;
    }

        .floating-cta .btn {
            font-size: 1.6rem;
            padding: 1rem;
        }

            .floating-cta .btn i {
                margin-right: 0;
            }

            .floating-cta .btn span {
                display: none;
            }
}
/* 追加スタイル - HaLVision専用強調要素 */

/* ヒーローセクション強化 */
.hero-badge {
    display: inline-block;
    background: rgba(255, 0, 128, 0.2);
    color: #fff;
    padding: 8px 16px;
    border-radius: 20px;
    font-size: 1.4rem;
    margin-bottom: 2rem;
    border: 1px solid rgba(255, 0, 128, 0.3);
    backdrop-filter: blur(5px);
    animation: fadeIn 1s forwards;
}

.hero-features {
    display: flex;
    justify-content: center;
    gap: 3rem;
    margin: 3rem 0;
    animation: fadeInUp 1s forwards 1.2s;
    opacity: 0;
    transform: translateY(30px);
}

.hero-feature {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    background: rgba(255, 255, 255, 0.05);
    backdrop-filter: blur(5px);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 8px;
    padding: 1.5rem;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    width: 150px;
}

    .hero-feature:hover {
        transform: translateY(-5px);
        box-shadow: 0 10px 20px rgba(0, 0, 0, 0.2);
        border-color: var(--accent-blue);
    }

    .hero-feature i {
        font-size: 2.4rem;
        margin-bottom: 1rem;
        color: var(--accent-blue);
    }

    .hero-feature span {
        font-size: 1.4rem;
        line-height: 1.3;
    }

/* 価値提案セクション */
.value-proposition-section {
    position: relative;
    padding: 12rem 0;
    background: var(--dark-base);
    overflow: hidden;
}

.glass-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 5rem;
    background: rgba(42, 27, 93, 0.2);
    backdrop-filter: blur(10px);
    border-radius: 20px;
    border: 1px solid rgba(255, 255, 255, 0.05);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3);
    position: relative;
    z-index: 1;
}

.dual-structure {
    margin: 5rem 0;
}

.dual-structure-visual {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 2rem;
    flex-wrap: wrap;
    margin-bottom: 5rem;
}

.structure-item {
    background: var(--glass-bg);
    backdrop-filter: blur(8px);
    border: 1px solid var(--glass-border);
    border-radius: 12px;
    padding: 2rem;
    text-align: center;
    width: 200px;
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

    .structure-item:hover {
        transform: translateY(-10px);
        box-shadow: 0 15px 30px rgba(0, 0, 0, 0.2);
    }

.structure-video {
    border-color: rgba(255, 0, 128, 0.3);
    background: rgba(255, 0, 128, 0.1);
}

.structure-message {
    border-color: rgba(0, 255, 234, 0.3);
    background: rgba(0, 255, 234, 0.1);
}

.structure-result {
    border-color: rgba(255, 255, 255, 0.3);
    background: linear-gradient(135deg, rgba(255, 0, 128, 0.2) 0%, rgba(0, 255, 234, 0.2) 100%);
    width: 250px;
}

.structure-plus,
.structure-equals {
    font-size: 3rem;
    color: var(--light-text);
    display: flex;
    align-items: center;
    justify-content: center;
    height: 50px;
    width: 50px;
}

.structure-icon {
    font-size: 3.6rem;
    margin-bottom: 1.5rem;
}

.structure-video .structure-icon {
    color: var(--accent-pink);
}

.structure-message .structure-icon {
    color: var(--accent-blue);
}

.structure-result .structure-icon {
    background: linear-gradient(90deg, var(--accent-pink), var(--accent-blue));
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
}

.structure-item h3 {
    font-size: 1.8rem;
    margin-bottom: 1rem;
    font-weight: 400;
}

.structure-item p {
    font-size: 1.4rem;
    line-height: 1.5;
    color: var(--light-text-muted);
}

.value-cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 3rem;
    margin: 5rem 0;
}

.value-card {
    background: var(--glass-bg);
    backdrop-filter: blur(8px);
    border: 1px solid var(--glass-border);
    border-radius: 12px;
    padding: 3rem;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    height: 100%;
}

    .value-card:hover {
        transform: translateY(-10px);
        box-shadow: 0 15px 30px rgba(0, 0, 0, 0.2);
        border-color: var(--accent-blue);
    }

.value-icon {
    font-size: 3.6rem;
    margin-bottom: 2rem;
    color: var(--accent-blue);
}

.value-card h3 {
    font-size: 2rem;
    margin-bottom: 1.5rem;
    color: var(--light-text);
    font-weight: 400;
}

.value-card p {
    font-size: 1.6rem;
    line-height: 1.6;
    color: var(--light-text-muted);
}

    .value-card p strong {
        color: var(--accent-blue);
        font-weight: 500;
    }

.cta-box {
    text-align: center;
    background: linear-gradient(135deg, rgba(42, 27, 93, 0.5) 0%, rgba(8, 5, 16, 0.5) 100%);
    border-radius: 12px;
    padding: 4rem;
    margin-top: 5rem;
    border: 1px solid rgba(255, 255, 255, 0.05);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
}

    .cta-box h3 {
        font-size: 2.4rem;
        margin-bottom: 2rem;
        line-height: 1.4;
    }

    .cta-box p {
        font-size: 1.8rem;
        margin-bottom: 3rem;
        color: var(--light-text-muted);
    }

    .cta-box .btn {
        font-size: 1.8rem;
        padding: 1.2rem 3rem;
    }

/* メッセージボードセクション強化 */
.use-cases {
    margin: 5rem 0;
    text-align: center;
}

    .use-cases h3 {
        font-size: 2.4rem;
        margin-bottom: 3rem;
        color: var(--accent-blue);
    }

.use-case-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 2rem;
    max-width: 1000px;
    margin: 0 auto;
}

.use-case-item {
    background: var(--glass-bg);
    backdrop-filter: blur(8px);
    border: 1px solid var(--glass-border);
    border-radius: 8px;
    padding: 2rem;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

    .use-case-item:hover {
        transform: translateY(-5px);
        box-shadow: 0 10px 20px rgba(0, 0, 0, 0.2);
        border-color: var(--accent-blue);
    }

.use-case-icon {
    font-size: 2.4rem;
    margin-bottom: 1.5rem;
    color: var(--accent-blue);
}

.use-case-item p {
    font-size: 1.5rem;
    line-height: 1.4;
}

.security-features {
    margin: 5rem 0;
    text-align: center;
}

    .security-features h3 {
        font-size: 2.4rem;
        margin-bottom: 3rem;
        color: var(--accent-blue);
    }

.security-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    max-width: 1000px;
    margin: 0 auto;
}

.security-item {
    background: rgba(255, 255, 255, 0.03);
    backdrop-filter: blur(8px);
    border: 1px solid rgba(255, 255, 255, 0.05);
    border-radius: 8px;
    padding: 2rem;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

    .security-item:hover {
        transform: translateY(-5px);
        box-shadow: 0 10px 20px rgba(0, 0, 0, 0.2);
    }

    .security-item i {
        font-size: 2.4rem;
        margin-bottom: 1.5rem;
        color: var(--accent-blue);
    }

    .security-item p {
        font-size: 1.5rem;
        line-height: 1.4;
    }

/* レスポンシブ調整 */
@media (max-width: 992px) {
    .glass-container {
        padding: 3rem;
    }

    .hero-features {
        flex-wrap: wrap;
        gap: 1.5rem;
    }

    .hero-feature {
        width: 130px;
        padding: 1.2rem;
    }

    .value-cards {
        grid-template-columns: 1fr;
    }

    .dual-structure-visual {
        flex-direction: column;
        gap: 1.5rem;
    }

    .structure-plus,
    .structure-equals {
        transform: rotate(90deg);
    }
}

@media (max-width: 768px) {
    .hero-badge {
        font-size: 1.2rem;
    }

    .hero-feature {
        width: 110px;
        padding: 1rem;
    }

        .hero-feature i {
            font-size: 2rem;
        }

        .hero-feature span {
            font-size: 1.2rem;
        }

    .structure-item {
        width: 180px;
    }

    .structure-result {
        width: 180px;
    }

    .cta-box {
        padding: 2.5rem;
    }

        .cta-box h3 {
            font-size: 2rem;
        }

    .use-case-grid,
    .security-grid {
        grid-template-columns: 1fr 1fr;
    }
}

@media (max-width: 576px) {
    .glass-container {
        padding: 2rem;
    }

    .hero-features {
        gap: 1rem;
    }

    .hero-feature {
        width: 100px;
    }

    .structure-item,
    .structure-result {
        width: 150px;
    }

    .value-card {
        padding: 2rem;
    }

    .use-case-grid,
    .security-grid {
        grid-template-columns: 1fr;
    }
}
.contact-buttons {
    display: flex;
    flex-direction: column;
    gap: 1rem;
    margin-top: 2rem;
    width: 100%;
}

    .contact-buttons .btn {
        display: flex;
        align-items: center;
        justify-content: center;
        padding: 1rem 1.5rem;
        width: 100%;
        font-weight: 500;
        transition: all 0.3s ease;
    }

        .contact-buttons .btn i {
            margin-right: 0.5rem;
            font-size: 1.2rem;
        }

    .contact-buttons .btn-line {
        background-color: #06C755;
        color: white;
        border: none;
    }

        .contact-buttons .btn-line:hover {
            background-color: #05a648;
            transform: translateY(-3px);
            box-shadow: 0 5px 15px rgba(6, 199, 85, 0.3);
        }

@media (min-width: 768px) {
    .contact-buttons {
        flex-direction: row;
    }
}